The novel revolves around the life of the titular character, Margaret Capel, and spans three volumes to depict her journey through various trials and tribulations. The plot typically involves themes of romance, family secrets, societal expectations, and personal growth.As a typical Victorian novel, "Margaret Capel" explores the complexities of relationships, the impact of social class, and the moral dilemmas faced by its characters. Margaret Capel herself is often portrayed as a strong-willed protagonist who confronts adversity with resilience and grace.